Eclipse/Java9: how to access internal javafx packages?

Question

My context:

• Eclipse IDE for Java Developers, Version: Oxygen.1a Release (4.7.1a), Build id: 20171005-1200oxygen
• jdk9.0.1
• win10

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Answer 1

1. In Project > Properties: Java Build Path, Libraries tab, select the node Modulepath/JRE System Library[JavaSE-9]/Is modular and click Edit...
2. In the Module Properties dialog, in the Details tab, in the Added exports section click Add... and enter the following:
   • Source module: javafx.controls
   • Package: com.sun.javafx.scene.control
3. Click OK twice to close the Add-exports configuration and the Module Properties dialogs and Apply and Close to close the Properties dialog